*{
    margin: 0;
    padding: 0;
}

.header{
    width: 87vw;
    height: 10vh;
    font-size: 2vw;
    line-height: 10vh;
    padding: 0 40px;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main{
    width: 87vw;
    height: 90vh;
    background-color: #EFEFEF;
    padding: 20px;
    box-sizing: border-box;
}